Note: 1gigawtt =" 1000" megawatts
SAN FRANCISCO — Apple is cleaning up its manufacturing operations in China to reduce the air pollution caused by the factories that have assembled （装配） hundreds of millions of iPhones and iPads during the past eight years.
The world's most valuable company is working with its Chinese suppliers to eventually produce 2.2 gigawatts of solar power and other renewable energy.
The commitment announced Wednesday represents Apple's latest attempt to prevent the popularity of its devices and digital services from increasing the carbon emissions that are widely believed to change the Earth's climate.
Apple Inc. estimates （估计） 20 million tons of greenhouse gas pollution will be avoided as more of its suppliers rely on renewable energy between now and 2020. That's like having four million fewer cars on the road for a year.
Panels capable of generating （生产） about 200 megawatts of solar power will be financed by Apple in the northern, southern and eastern regions of China, where many of its suppliers are located. The company is teaming up with its Chinese suppliers to build the capacity for the remaining 2 gigawatts of renewable energy, which will be a mix of solar, wind and hydroelectric power.
Foxconn, which runs the factory where the most iPhones are assembled, is pledging to contribute 400 megawatts of solar power as part of the 2-gigawatt commitment. The solar panels to be built by 2018 in China's Henan Province are supposed to produce as much renewable energy as Foxconn's Zhengzhou factory consumes while making iPhones.
Apple has made protecting the environment a higher priority since Tim Cook replaced the late Steve Jobs as the company's CEO four years ago.
"Climate change is one of the great challenges of our time, and the time for action is now," Cook said in a statement. "The transition to a new green economy requires innovation, ambition and purpose."
Apple just completed projects in China that generate 40 megawatts of solar energy to cover the power required by its 24 stores and 19 offices in the country. All of Apple's data centers, offices and stores in the U.S. already have been running on renewable energy.
"When you look at all the air pollution in China, all the manufacturing that is done there has a lot to do with it, so this is a significant step in the right direction," said Gary Cook, a senior analyst for Greenpeace, a group devoted to protecting the environment.
Apple also has a financial motivation to help make China a better place to live. The greater China region is Apple's second biggest market behind the U.S. Tim Cook has made it clear that he wants the company to make even more progress as rising incomes enable more of China's population to buy smart phones and other gadgets.
Apple can easily afford to go green. The company had $203 billion in cash at the end of June. This story has been reflected to correct that Apple and its suppliers haven't set a timetable for producing the 2.2 gigawatts of renewable energy in China.The commitment announced Wednesday shows that ______.
| A．Apple wanted to change its public image eagerly |
| B．Apple wanted to contribute to protecting the environment |
| C．Apple wanted to cut down its expenses by using renewable energy |
| D．Apple wanted to stop the popularity of its product from polluting the environment |
It is estimated that with Apple's new commitment, ______.
| A．There will be four million fewer cars on the road for a year |
| B．20 billion tons of greenhouse gas pollution will be avoided |
| C．Much of its greenhouse gas pollution will be avoided between now and 2020 |
| D．China will become Apple's second biggest market behind the US |
Which of the following statements is TRUE?
| A．Apple has enough cash in store for switching to renewable energy supply. |
| B．The 2 gigawatts of renewable energy will be a mix of solar, wind and electric power. |
| C．Apple's data centers, offices and stores already have been running on renewable energy. |
| D．Apple will eventually produce 2.2 gigawatts of solar power and other renewable energy. |
What is Gary Cook's attitude towards Apple's commitment?
| A．Optimistic | B．Supportive |
| C．Doubtful | D．Indifferent |
Where is this passage probably taken from?
| A．A science report. | B．A textbook. |
| C．An advertisement. | D．A newspaper. |
With the popularity of 3D movies over the past several years , there was no doubt that the technology would make its way into our homes, The question is: Is it really a technology that is going to stay with us , thus deserving an upgrade(升级) at this time?
Many families have recently bought a new TV set, and the idea of changing it just to take advantage of a technology in its infancy(初期)will put many people off the idea. Then there are the additional costs that come along with a 3Dset from needing to get a Blu-ray player that can process the signal to purchasing enough glasses for the entire family to be able to watch a program at the same time.
Another issue is that the glasses are expensive as well as complicated, and have also been known to cause headaches, none of which makes for a pleasant experience.
While manufacturers are working towards glasses-free technology, it just isn’t here yet, and it could be several years before it is commercially successful. That is one of main things that will keep 3D completely in the “fashion” zone for the time being . If the television manufacturers are willing to hold onto the idea until glasses-free choices are available—and they can reach a higher installed(安装)user base—this might very well catch on. Everyone needs to remember, however, that these are businesses, and they are in it to make money. If 3D isn’t selling at the rate they are comfortable with, then they will dump it and move on to the next thing.
Many homes are filled with products that didn’t catch on rapidly and companies ended up leaving them with no support. Do you have an HD DVD player? Remember how the MiniDisc was supposed to replace the CD? For now, it’s easy to see how 3D televisions could join this list of technologies.
There is one upside to the 3D television problem: They have beautiful 2D images. Even if 3D goes away, you still have a great –looking screen and beautiful images. If you are in the market for a new TV and you can afford to drop the couple extra hundred dollars to buy one, you can view it as guaranteeing your purchase in case the technology proves to be effective.We know from the text that 3D TV.
| A．is easy to operate |
| B．has been fully developed |
| C．has many products attached to it |
| D．has already replaced normal TV sets |
What’s the main idea of paragraph 4?
| A．3D is fashionable and expensive. |
| B．It’s hard for 3D to be commercially successful. |
| C．Television manufacturers’ only purpose is to make money. |
| D．It’s impossible to create glasses-free technology at the moment. |
The examples of the HD DVD player and CD are to show.
| A．they are not necessary |
| B．they are bound to be replaced |
| C．3D TV might not be here to stay |
| D．3D technology needs improving |
The underlined word “upside” in the last paragraph probably means.
| A．solution | B．exception | C．character | D．benefit |
What’s the author’s opinion on 3D TV?
A.He is critical of it.
B. He thinks highly of it.
C.It is more effective than expected.
D. It has more beautiful images than 2D.
Emilio and Michi spread the colorful tablecloth on the table. They made room for Drew, who was carrying a dish. “Watch out,” Drew warned. “This is pretty hot.”
A moment later, Kent and Alyssa added another hot dish to the table. “That smells so good!” said Michi. “Are most of the parents here yet? I’m hungry.”
Kent looked through the doors that led into the hallway. “I think Ms. Milano and Mr.Hasselbach just finished giving them the garden touring. They should be heading into the cafeteria next.”
The students of Jefferson Middle School in Saint Louis, US had spent all afternoon preparing for the evening meal. They did their best to transform the lunchroom into a beautiful dining area for their families.
As the families found their seats, Ms. Milano asked Drew, Emilio, and Michi to join her at the front of the room. She said, “I just wanted to take a moment to congratulate Drew, Emilio and Michi for their wonderful idea. A year ago, they first came to me with the plan for starting a garden at Jefferson. I wondered whether it would work, but they had thought through everything. Any time I had a question about how we would make this work, they had an answer prepared. As you can see, they were absolutely correct. About three-quarters of the food you will be enjoying came from the school garden. The students prepared the entire meal themselves.”
Ms. Milano handed Drew, Michi and Emilio a box each. They opened their box as Ms. Milano continued. “As a thank-you to these students for their creative idea and hard work, they have each received a stepping stone(垫脚石)for the garden. Their names and date appear on the stones.”
She turned to them. “Students for years to come will be enjoying the garden that you helped create,” she said. “We thought it would be appropriate for them to have a reminder of our garden’s founders.”
They held up their stepping stones and smiled as the crowd clapped. “And now,” said Ms Milano, “please help yourself to some of the mouthwatering food our young chefs have prepared. Dinner is served!”What does the underlined word “them” in paragraph 3 refer to?
| A．The students’ parents. | B．New students. | C．Teachers. | D．The school chefs. |
According to the text, the food served on the table
| A．was served as a lunch |
| B．was cooked by the students |
| C．was prepared to thank the kids |
| D．was entirely from the school garden |
What was Ms. Milano’s original attitude toward starting a garden at school?
| A．She was doubtful about it |
| B．She felt it was worth a try |
| C．she was strongly against it |
| D．She thought it a wonderful idea. |
Why did Ms. Milano give stepping stones to Drew, Michi , and Emilio?
| A．They have good cooking skills. |
| B．They are the best students of the school. |
| C．They have made the school more beautiful. |
| D．They are the founders of the school garden. |
What would be the best title of the text?
| A．A school garden | B．Garden chefs | C．Creative students | D．A delicious meal |
Watercress is positively packed with healthy vitamins and minerals. The writings of both the Romans and the Ancient Greeks record the consumption of watercress by all classes. Hippocrates, “the father of medicine”, was so convinced that watercress was a great healer that he built his first hospital next to a stream so that he could grow a plentiful supply of the shiny green leaves for his patients. The Romans chewed watercress in large quantities, believing that it would cure baldness. They, too, looked with favor on watercress as a salad.
Watercress sandwiches were traditionally a breakfast item in nineteenth-century Europe. The most basic type of watercress sandwich has two pieces of white bread with a mixture of butter and watercress greens . A nickname(绰号)for the vegetable, in fact, was “poor man’s bread”, because watercress was often eaten on its own for breakfast by families that could not afford the bread to go with it.
Watercress is a member of the mustard(芥菜) family. It contains vitamins C(66mg per 100g), K and A, and is also a valuable source of minerals such as iron, potassium, copper and calcium. The mustard oils in its silky leaves and stems(茎)contain an ingredient known as PEITC. Recent research has proved that PEITC can prevent the growth of cancer cells and, in some cases, actually destroy them.
The best watercress has silky green leaves without any marks and has undamaged stems, The older the plant, the darker are its leaves and the thicker its stems. This means a higher concentration of oils and vitamins. Young watercress, on the other hand, may be harvested after only twenty-eight days growth and has a milder taste. It is best to eat watercress fresh and raw , to keep more of its valuable nutrients, but it can be lightly cooked and used as an alternative to spinach—another dark green vegetable—in various recipes. From soups to salads, watercress is now considered around the world as a natural and healthy super food.From paragraph 1, we can learn that________.
| A．watercress is usually grown in wet areas |
| B．the ancient Greeks only used watercress for medicine |
| C．watercress is the most ancient vegetable known to man |
| D．the Romans rubbed watercress on their heads to cure baldness |
The underlined word “it” in paragraph 2 refers to “_________”.
| A．butter | B．watercress | C．breakfast | D．bread |
Which of the following is TRUE about watercress?
A.It belongs to the same family as spinach.
B.It contains mustard oils only in leaves.
C.It can help guard against cancer.
D.It is rich in vitamins C and B.Compared with older watercress, young watercress .
| A．has lighter green leaves |
| B．contains more minerals |
| C．is better for medical use |
| D．is more suitable for eating raw |
What would be the best title for the text?
| A．The history of watercress | B．watrcress, a medicinal plant |
| C．Watercress, the amazing food | D．New findings about watercress |
Yawning sends out certain messages -either “Oh，this movie is so boring” or “I probably need to get some sleep”. But did you know that a yawn can also help your brain to cool down when it is overheated?
A new study, led by a research team at Princeton University, has indicated that yawning could be the brain’s natural way of regulating temperature. People yawn more often when the temperature outdoors is lower than their body temperature but are less likely to yawn when it is hotter outdoors, according to Sciencedaily. com.
The research team did an experiment on 160 people, 80 in summer and 80 in winter, to examine how often they yawned at different air temperatures. The study found that people yawned more often in winter than in summer. Scientists say that when the air temperature is lower outside the body, there is heat exchange between the overheated brain and the cool air. But when the air temperature is higher than or equal to the body, people are less likely to yawn because the hot air they breathe in will make the brain even hotter.
When people yawn, their jaw is also stretched，which increases blood flow and may also help cool the brain
The study showed that the amount someone yawned could be related to the amount of time they spent outside. The longer they spent outside in summer, the less they yawned. Nearly 40 percent of participants yawned within their first five minutes outside, but after that the percentage was reduced to less than 10 percent.
However, the result was the opposite in winter. The number of people who yawned increased when they spent more than five minutes outdoors. But the change was only slight compared to summertime.
According to Gallup, this is the first report to show that yawning frequencies change depending on season. This could help us to understand better the way our brains work. It may also help us understand the reason why frequent yawning can sometimes be a sign of brain disease.The purpose of the experiment is ______.
| A．to find the frequency of people’s yawning |
| B．to indicate brain can regulate temperature naturally |
| C．to prove people yawn in winter and in summer equally |
| D．to show the real reason why people yawn |
The information we get from Paragraphs 5 and 6 is that ______.
| A．longer outdoor summertime results in more yawns |
| B．yawning frequency increases with outdoor time |
| C．yawning frequency changes with outdoor time |
| D．longer outdoor wintertime leads to fewer yawns |
Acorrding to the text，people yawn more often ______.
| A．when the air temperature is equal to the body |
| B．when the hot air breathed in makes the brain hotter |
| C．when the air temperature is higher than the body |
| D．when the air temperature is lower outside the body |
What could be the best title for the text?
| A．Yawning Is A Sign of Brain Disease |
| B．Yawning Cools Your Brain |
| C．Yawning Benefits Your Body |
| D．Yawning Carries Some Information |
In the late 1970’s,many people in North America turned their attention to environmental problems ，and new steel — and — glass skyscrapers were widely criticized. Some ecologists (生态学家）pointed out that a number of tall buildings in a city often overburden public transportation.
Skyscrapers are also lavish consumers of electric power and water. In just one recent year, the addition of 17 million square feet of skyscraper office space in New York City itself has already raised the top daily demand for electricity by 120, 000 kw — enough to supply the entire city of Albany in New York area for a single day.
Glass—walled skyscrapers can also be especially wasteful. The heat loss ，or gain， through a wall of half 一 inch plate glass is more than ten times that through a typical ordinary wall filled with bricks or board. In order to decrease the pressure on heating and air — conditioning equipment, builders of skyscrapers have begun to use double—layered glass ，and reflective glasses coated with silver or gold mirror films that could reduce glare (强光）as well as heat gain. However, mirror — walled skyscrapers may raise the temperature of the surrounding air and affect neighboring buildings as well.
Skyscrapers put a severe pressure on a city's sanitation (卫生）facilities, too. If fully occupied, the towers just within the central area of New York would alone produce 2. 25 million gallons of waste water each year^—as much as the city size of Stanford， Connecticut, which has a population of more than 109，000.The underlined phrase“ lavish consumers ”in the 2nd paragraph probably means ____
| A．trash producers | B．great spenders | C．pressure makers | D．poor customers |
Glass walls of skyscrapers are specially mentioned in order to _____.
| A．show how skyscrapers manage to lessen their pressure |
| B．explain why skyscrapers can control its air conditions |
| C．describe further how wasteful skyscrapers could be |
| D．present the stability of skyscrapers in modern buildings |
From the last paragraph we can learn that _____.
| A．central New York skyscrapers are a large waste water producer |
| B．the central area of New York is as large as the city of Stanford |
| C．more than 109，000 people live in the skyscrapers in New York |
| D．New York produces 2. 25 million gallons of waste water each year |
When the writer talks about skyscrapers ，his tone sounds _____
| A．positive | B．doubtful | C．grateful | D．negative |